Changed snapshot to JSONs

src/Dao/EntityConverters/SnapshotEntityConverter.php

@@ -14,8 +14,8 @@ class SnapshotEntityConverter extends AbstractEntityConverter implements IEntity
 			'primaryKey' => $entity->getPrimaryKey(),
 			'userId' => $entity->getUserId(),
 			'operation' => $entity->getOperation(),
-			'data' => serialize($entity->getData()),
-			'dataDifference' => serialize($entity->getDataDifference()),
+			'data' => json_encode($entity->getData()),
+			'dataDifference' => json_encode($entity->getDataDifference()),
 		];
 	}
 
@@ -27,8 +27,8 @@ class SnapshotEntityConverter extends AbstractEntityConverter implements IEntity
 		$entity->setPrimaryKey($array['primaryKey']);
 		$entity->setUserId($array['userId']);
 		$entity->setOperation($array['operation']);
-		$entity->setData(unserialize($array['data']));
-		$entity->setDataDifference(unserialize($array['dataDifference']));
+		$entity->setData(json_decode($array['data'], true));
+		$entity->setDataDifference(json_decode($array['dataDifference'], true));
 		return $entity;
 	}
 }

src/Upgrades/Upgrade31.php

@@ -0,0 +1,24 @@
+<?php
+namespace Szurubooru\Upgrades;
+use Szurubooru\DatabaseConnection;
+
+class Upgrade31 implements IUpgrade
+{
+	public function run(DatabaseConnection $databaseConnection)
+	{
+		$pdo = $databaseConnection->getPDO();
+
+		foreach (array_chunk(iterator_to_array($pdo->from('snapshots')), 100) as $chunk)
+		{
+			$pdo->beginTransaction();
+			foreach ($chunk as $array)
+			{
+				$pdo->update('snapshots')->set([
+					'data' => json_encode(unserialize($array['data'])),
+					'dataDifference' => json_encode(unserialize($array['dataDifference']))
+				])->where('id', $array['id'])->execute();
+			}
+			$pdo->commit();
+		}
+	}
+}

src/di.php

@@ -47,6 +47,7 @@ return [
 			$container->get(\Szurubooru\Upgrades\Upgrade28::class),
 			$container->get(\Szurubooru\Upgrades\Upgrade29::class),
 			$container->get(\Szurubooru\Upgrades\Upgrade30::class),
+			$container->get(\Szurubooru\Upgrades\Upgrade31::class),
 		];
 	}),